<?php
/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2016/11/15 0015
 * Time: 上午 8:53
 */
header('Content-Type:text/html;charset=utf-8');
$username=$_POST['username'];
$password=$_POST['password'];
$email=$_POST['email'];

echo '<h2>接收到新用户注册！</h2>';
echo '<p>用户名:'.$_POST['username'].'</p>';
echo '<p>密码:'.$_POST['password'].'</p>';
echo '<p>邮箱:'.$_POST['email'].'</p>';
echo '<p>IP地址:'.$_SERVER['REMOTE_ADDR'].'</p>';
echo '<p>浏览器环境:'.$_SERVER['HTTP_USER_AGENT'].'</p>';
echo '<p>请求来源:'.$_SERVER['HTTP_REFERER'].'</p>';

$username=mysqli_real_escape_string($username);
$email=mysqli_real_escape_string($email);
$sql="select `id` from `user` where `username`='$username'";
$rst=mysqli_query($sql);
if(mysqli_fetch_row($rst)){
    die('用户名已经存在，请换个用户名。');
}
$password=md5($password);
$sql="insert into `user` (`username`,`password`,`email`)values
                           ('$username','$password','email')";
$rst=mysqli_query($sql);



